[Qemu-devel] Qemu-KVM with 3x IDE HDD + CDROM not working

[Qemu-devel] Qemu-KVM with 3x IDE HDD + CDROM not working

[Peter Lieven]

Hi Qemu/KVM Devel Team,

if I create a VM with more than 2 harddisks and a CDROM Image and want 
to boot from CDROM this is not working.
 From my understanding at least 3 IDE Drives + 1 IDE CDROM should work.

cmdline:
/usr/bin/qemu-kvm-0.12.4  -net none  -drive 
file=/dev/sdb,if=ide,boot=on,cache=none,aio=native  -drive 
file=/dev/sdc,if=ide,boot=off,cache=none,aio=native  -drive 
file=/dev/sdd,if=ide,boot=off,cache=none,aio=native  -m 256 -cpu 
qemu64,model_id='Intel(R) Xeon(R) CPU           E5430  @ 2.66GHz' 
-monitor tcp:0:4001,server,nowait -vnc :1 -name 'ide-test'  -boot 
order=dc,menu=on  -cdrom 
/home/kvm/cdrom/root/KNOPPIX_V6.2.1CD-2010-01-31-DE.iso -k de  -pidfile 
/var/run/qemu/vm-153.pid  -mem-path /hugepages -mem-prealloc  -rtc 
base=utc,clock=vm -no-kvm-irqchip -usb -usbdevice tablet

SEABIOS shows error: Could not read from CDROM (code 0001)

Thanks,
Peter

[Qemu-devel] Re: Qemu-KVM with 3x IDE HDD + CDROM not working

[Kevin O'Connor]

On Wed, May 12, 2010 at 03:19:26PM +0200, Peter Lieven wrote:
> Hi Qemu/KVM Devel Team,
> 
> if I create a VM with more than 2 harddisks and a CDROM Image and
> want to boot from CDROM this is not working.
> From my understanding at least 3 IDE Drives + 1 IDE CDROM should work.
> 
> cmdline:
> /usr/bin/qemu-kvm-0.12.4  -net none  -drive
> file=/dev/sdb,if=ide,boot=on,cache=none,aio=native  -drive
> file=/dev/sdc,if=ide,boot=off,cache=none,aio=native  -drive
> file=/dev/sdd,if=ide,boot=off,cache=none,aio=native  -m 256 -cpu
> qemu64,model_id='Intel(R) Xeon(R) CPU           E5430  @ 2.66GHz'
> -monitor tcp:0:4001,server,nowait -vnc :1 -name 'ide-test'  -boot
> order=dc,menu=on  -cdrom
> /home/kvm/cdrom/root/KNOPPIX_V6.2.1CD-2010-01-31-DE.iso -k de
> -pidfile /var/run/qemu/vm-153.pid  -mem-path /hugepages
> -mem-prealloc  -rtc base=utc,clock=vm -no-kvm-irqchip -usb
> -usbdevice tablet
> 
> SEABIOS shows error: Could not read from CDROM (code 0001)

Your third drive conflicts with the cdrom.  Try adding ",index=3" to
the definition of sdd.

Qemu should probably handle this better, but the above works for me.

-Kevin